Quantum gravity phenomenology and black hole physics

This report is an extension of the talk given at ICGA7. We present a brief review on quantum gravity phenomenology at first, focusing on the fate of Lorentz symmetry at Planck scale. Then we investigate its possible impacts on the study of black holes physics. We argue that modified dispersion relations may require a modification of Bekenstein entropy bound, leading to a correction to the Bekenstein-Hawking entropy formula for black holes. In particular one specific modified dispersion relation is proposed in the context of doubly special relativity, which changes the picture of Hawking radiation and can prevent black holes from total evaporation.